[Core/Account Access] - Starting to do some clean up on account access
- and added a Trial Player Access to the core.

- Players shouldn't have control access to game master commands with in the
- core. So a re-write on the command system will happen over time. It will
- make the system more better then the RBAC way.

- With the RBAC system, you had to manually add the player to the list, so
- they had access to Battlegrounds, Arenas, Instance, etc. This is where the
- trial account comes into play.